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helicopter    音标拼音: [h'ɛlɪk,ɑptɚ]
n. 直升飞机
vt. 用直升飞机载送
vi. 乘直升飞机

直升飞机用直升飞机载送乘直升飞机

helicopter
n 1: an aircraft without wings that obtains its lift from the
rotation of overhead blades [synonym: {helicopter}, {chopper},
{whirlybird}, {eggbeater}]

Helicopter \Hel"i*cop`ter\, n. [NL., fr. Gr. "e`lix, "e`likos, a
spiral ptero`n a wing.]
a heavier-than-air aircraft whose lift is provided by the
aerodynamic forces on rotating blades rather than on fixed
wings. Contrasted with {fixed-wing aircraft}.
[PJC]


Helicopter \Hel"i*cop`ter\, v. i.
to travel in a helicopter.
[PJC]


Helicopter \Hel"i*cop`ter\, v. t.
to transport in a helicopter.
[PJC]

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  • Helicopter - Wikipedia
    The Focke-Wulf Fw 61 was the first successful, practical, and fully controllable helicopter in 1936, while in 1942, the Sikorsky R-4 became the first helicopter to reach full-scale production
  • Helicopter | Facts, History, Types | Britannica
    A helicopter is an aircraft with one or more power-driven horizontal propellers or rotors that enable it to take off and land vertically, to move in any direction, or to remain stationary in the air
  • Helicopter crash off Hawaii leaves 3 dead, 2 injured, authorities say
    A helicopter crashed Thursday afternoon on a remote beach on the Hawaiian island of Kauai, killing three people and injuring two, authorities said
  • How Helicopters Work - HowStuffWorks
    One thing that has characterized the helicopter since its invention in the 1930s has been the absurdity of the machine The contraption simply looks unable to deliver on its promise, which is to fly up and down, backward and forward, right and left
  • 3 killed, 2 injured in Hawaii helicopter tour crash - ABC News
    Three people are dead and two others were evacuated after a helicopter crashed off Kalalau Beach in Kauai, Hawaii, on Thursday, according to the U S Coast Guard
  • Helicopters - National Air and Space Museum
    A helicopter is an aircraft that is lifted and propelled by one or more powered rotating wings called rotors This allows them to operate from small landing sites
  • History of Helicopters: From Early Designs to Modern Innovations
    Nearly 100 years after practical rotorcraft first flew, rotary-wing machines now reach remote peaks and congested city rooftops with life-saving speed A helicopter is a rotorcraft that uses spinning rotors for lift and thrust, allowing vertical takeoff, hovering, and multidirectional flying
  • helicopter summary | Britannica
    Since a rotor is essentially a rotating airfoil, a helicopter is often described as a rotary-wing aircraft, in contrast to a conventional fixed-wing airplane One of the earliest ideas for flying, it appeared in China and Renaissance Europe as a toy and in Leonardo da Vinci ’s designs
  • Hawaii helicopter crash kills 3, injures 2 off Kauai coast
    At least three people were killed when a thrill-seeking tour helicopter crashed on the Hawaiian island of Kauaʻi on Thursday afternoon
  • 25 Types Of Helicopters | Uses And Examples – Engineerine
    In today’s world, helicopters are a common sight in many parts of the globe They are used for various purposes, including traffic monitoring, community policing, and cargo transportation





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